Question

The Tire Rack, America's leading online distributor of tires and wheels, conducts extensive testing to provide customers with products that are right for their vehicle. The following data show survey ratings (1 to 10, with 10 being the highest) for 18 summer tires. Develop an estimated regression equation that can be used to predict the Buy Again rating given based on the Steering and Tread wear rating. How many percent of the variation in the Buy Again variable could be predicted by Steering and Thread wear rating? Note: put answers into decimal form, if your answer is 90.8765%, enter in 0.908765.

THESE ARE INCORRECT ANSWERS

Answer 1

The fitted linear regression line is $\hat{Y} = -5.3877 + 0.6899*Steering + 0.9113*Tread Wear$ .

The corresponding R square is 0.9318, that is means that Y can explained 93.18% for the amount variations of Steering and Tread Wear